/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 02:07:35,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 02:07:35,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 02:07:36,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 02:07:36,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 02:07:36,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 02:07:36,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 02:07:36,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 02:07:36,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 02:07:36,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 02:07:36,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 02:07:36,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 02:07:36,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 02:07:36,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 02:07:36,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 02:07:36,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 02:07:36,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 02:07:36,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 02:07:36,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 02:07:36,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 02:07:36,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 02:07:36,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 02:07:36,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 02:07:36,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 02:07:36,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 02:07:36,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 02:07:36,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 02:07:36,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 02:07:36,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 02:07:36,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 02:07:36,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 02:07:36,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 02:07:36,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 02:07:36,123 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 02:07:36,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 02:07:36,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 02:07:36,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 02:07:36,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 02:07:36,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 02:07:36,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 02:07:36,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 02:07:36,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 02:07:36,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 02:07:36,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 02:07:36,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 02:07:36,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 02:07:36,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 02:07:36,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 02:07:36,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 02:07:36,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 02:07:36,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 02:07:36,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 02:07:36,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 02:07:36,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 02:07:36,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 02:07:36,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:36,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 02:07:36,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 02:07:36,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 02:07:36,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 02:07:36,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 02:07:36,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 02:07:36,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 02:07:36,467 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 02:07:36,468 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-07-21 02:07:36,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4a02804/a45a40c107384ba786f23c357ddbe903/FLAGbd03167cc [2020-07-21 02:07:37,153 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 02:07:37,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-07-21 02:07:37,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4a02804/a45a40c107384ba786f23c357ddbe903/FLAGbd03167cc [2020-07-21 02:07:37,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4a02804/a45a40c107384ba786f23c357ddbe903 [2020-07-21 02:07:37,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 02:07:37,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 02:07:37,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 02:07:37,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 02:07:37,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 02:07:37,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:07:37" (1/1) ... [2020-07-21 02:07:37,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6788a2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:37, skipping insertion in model container [2020-07-21 02:07:37,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:07:37" (1/1) ... [2020-07-21 02:07:37,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 02:07:37,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 02:07:37,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 02:07:37,950 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 02:07:38,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 02:07:38,055 INFO L208 MainTranslator]: Completed translation [2020-07-21 02:07:38,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38 WrapperNode [2020-07-21 02:07:38,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 02:07:38,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 02:07:38,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 02:07:38,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 02:07:38,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... [2020-07-21 02:07:38,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 02:07:38,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 02:07:38,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 02:07:38,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 02:07:38,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 02:07:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 02:07:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 02:07:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 02:07:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-07-21 02:07:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-07-21 02:07:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-07-21 02:07:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-07-21 02:07:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-07-21 02:07:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-07-21 02:07:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-07-21 02:07:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-07-21 02:07:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 02:07:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 02:07:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 02:07:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 02:07:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 02:07:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-07-21 02:07:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-07-21 02:07:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-07-21 02:07:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-07-21 02:07:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-07-21 02:07:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-07-21 02:07:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-07-21 02:07:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 02:07:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-07-21 02:07:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-07-21 02:07:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-21 02:07:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 02:07:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 02:07:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 02:07:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 02:07:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 02:07:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 02:07:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 02:07:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 02:07:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 02:07:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 02:07:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 02:07:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-21 02:07:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 02:07:39,448 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 02:07:39,449 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-21 02:07:39,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:07:39 BoogieIcfgContainer [2020-07-21 02:07:39,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 02:07:39,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 02:07:39,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 02:07:39,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 02:07:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:07:37" (1/3) ... [2020-07-21 02:07:39,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471ac349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:07:39, skipping insertion in model container [2020-07-21 02:07:39,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:07:38" (2/3) ... [2020-07-21 02:07:39,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471ac349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:07:39, skipping insertion in model container [2020-07-21 02:07:39,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:07:39" (3/3) ... [2020-07-21 02:07:39,464 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2020-07-21 02:07:39,474 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 02:07:39,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 02:07:39,495 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 02:07:39,520 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 02:07:39,520 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 02:07:39,520 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 02:07:39,521 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 02:07:39,521 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 02:07:39,521 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 02:07:39,521 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 02:07:39,521 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 02:07:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-07-21 02:07:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-21 02:07:39,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:39,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:39,563 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:39,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:39,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1328586124, now seen corresponding path program 1 times [2020-07-21 02:07:39,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:39,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460234361] [2020-07-21 02:07:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:39,888 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 02:07:39,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:39,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 02:07:39,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 02:07:39,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 02:07:39,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460234361] [2020-07-21 02:07:39,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 02:07:39,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 02:07:39,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722781639] [2020-07-21 02:07:39,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 02:07:39,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 02:07:40,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:40,003 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-07-21 02:07:40,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:40,098 INFO L93 Difference]: Finished difference Result 264 states and 407 transitions. [2020-07-21 02:07:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 02:07:40,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-07-21 02:07:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:40,118 INFO L225 Difference]: With dead ends: 264 [2020-07-21 02:07:40,119 INFO L226 Difference]: Without dead ends: 141 [2020-07-21 02:07:40,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:40,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-21 02:07:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 121. [2020-07-21 02:07:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-21 02:07:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 168 transitions. [2020-07-21 02:07:40,195 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 168 transitions. Word has length 43 [2020-07-21 02:07:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:40,195 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 168 transitions. [2020-07-21 02:07:40,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 02:07:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 168 transitions. [2020-07-21 02:07:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-21 02:07:40,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:40,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:40,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:40,410 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:40,411 INFO L82 PathProgramCache]: Analyzing trace with hash -294008176, now seen corresponding path program 1 times [2020-07-21 02:07:40,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:40,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716645537] [2020-07-21 02:07:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:40,638 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 02:07:40,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:40,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 02:07:40,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 02:07:40,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 02:07:40,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 02:07:40,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716645537] [2020-07-21 02:07:40,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 02:07:40,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-21 02:07:40,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847631643] [2020-07-21 02:07:40,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 02:07:40,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:40,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 02:07:40,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 02:07:40,747 INFO L87 Difference]: Start difference. First operand 121 states and 168 transitions. Second operand 6 states. [2020-07-21 02:07:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:41,056 INFO L93 Difference]: Finished difference Result 308 states and 452 transitions. [2020-07-21 02:07:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 02:07:41,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-07-21 02:07:41,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:41,068 INFO L225 Difference]: With dead ends: 308 [2020-07-21 02:07:41,068 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 02:07:41,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-07-21 02:07:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 02:07:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 127. [2020-07-21 02:07:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-21 02:07:41,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 174 transitions. [2020-07-21 02:07:41,119 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 174 transitions. Word has length 45 [2020-07-21 02:07:41,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:41,120 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 174 transitions. [2020-07-21 02:07:41,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 02:07:41,120 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 174 transitions. [2020-07-21 02:07:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-21 02:07:41,126 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:41,127 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:41,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:41,328 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:41,328 INFO L82 PathProgramCache]: Analyzing trace with hash -375236310, now seen corresponding path program 1 times [2020-07-21 02:07:41,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:41,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720108682] [2020-07-21 02:07:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:41,614 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 02:07:41,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:41,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 02:07:41,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-21 02:07:41,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 02:07:41,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720108682] [2020-07-21 02:07:41,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 02:07:41,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 02:07:41,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077504371] [2020-07-21 02:07:41,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 02:07:41,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:41,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 02:07:41,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:41,644 INFO L87 Difference]: Start difference. First operand 127 states and 174 transitions. Second operand 3 states. [2020-07-21 02:07:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:41,700 INFO L93 Difference]: Finished difference Result 166 states and 223 transitions. [2020-07-21 02:07:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 02:07:41,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-07-21 02:07:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:41,703 INFO L225 Difference]: With dead ends: 166 [2020-07-21 02:07:41,704 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 02:07:41,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:41,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 02:07:41,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-07-21 02:07:41,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-21 02:07:41,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 175 transitions. [2020-07-21 02:07:41,735 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 175 transitions. Word has length 55 [2020-07-21 02:07:41,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:41,736 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 175 transitions. [2020-07-21 02:07:41,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 02:07:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 175 transitions. [2020-07-21 02:07:41,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-21 02:07:41,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:41,744 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:41,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:41,945 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:41,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:41,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2144510083, now seen corresponding path program 1 times [2020-07-21 02:07:41,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:41,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597816988] [2020-07-21 02:07:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:42,165 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 02:07:42,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:42,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 02:07:42,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 02:07:42,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 02:07:42,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597816988] [2020-07-21 02:07:42,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 02:07:42,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 02:07:42,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631597694] [2020-07-21 02:07:42,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 02:07:42,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:42,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 02:07:42,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:42,202 INFO L87 Difference]: Start difference. First operand 128 states and 175 transitions. Second operand 3 states. [2020-07-21 02:07:42,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:42,223 INFO L93 Difference]: Finished difference Result 180 states and 242 transitions. [2020-07-21 02:07:42,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 02:07:42,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-07-21 02:07:42,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:42,226 INFO L225 Difference]: With dead ends: 180 [2020-07-21 02:07:42,226 INFO L226 Difference]: Without dead ends: 136 [2020-07-21 02:07:42,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-21 02:07:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 128. [2020-07-21 02:07:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-21 02:07:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2020-07-21 02:07:42,238 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 55 [2020-07-21 02:07:42,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:42,238 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2020-07-21 02:07:42,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 02:07:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2020-07-21 02:07:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 02:07:42,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:42,241 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:42,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:42,455 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:42,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:42,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1776861212, now seen corresponding path program 1 times [2020-07-21 02:07:42,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:42,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118103115] [2020-07-21 02:07:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:42,726 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 02:07:42,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:42,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 02:07:42,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 02:07:42,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 02:07:42,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118103115] [2020-07-21 02:07:42,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 02:07:42,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 02:07:42,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953322290] [2020-07-21 02:07:42,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 02:07:42,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:42,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 02:07:42,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:42,755 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand 3 states. [2020-07-21 02:07:42,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:42,788 INFO L93 Difference]: Finished difference Result 190 states and 258 transitions. [2020-07-21 02:07:42,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 02:07:42,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 02:07:42,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:42,790 INFO L225 Difference]: With dead ends: 190 [2020-07-21 02:07:42,791 INFO L226 Difference]: Without dead ends: 146 [2020-07-21 02:07:42,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 02:07:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-21 02:07:42,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 129. [2020-07-21 02:07:42,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-21 02:07:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2020-07-21 02:07:42,813 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 175 transitions. Word has length 56 [2020-07-21 02:07:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:42,819 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 175 transitions. [2020-07-21 02:07:42,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 02:07:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 175 transitions. [2020-07-21 02:07:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 02:07:42,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:42,823 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:43,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:43,024 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:43,025 INFO L82 PathProgramCache]: Analyzing trace with hash 450483994, now seen corresponding path program 1 times [2020-07-21 02:07:43,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:43,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351676658] [2020-07-21 02:07:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:43,483 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 02:07:43,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:43,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 02:07:43,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:43,514 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 02:07:43,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 02:07:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 02:07:43,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351676658] [2020-07-21 02:07:43,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 02:07:43,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-21 02:07:43,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125194747] [2020-07-21 02:07:43,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 02:07:43,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:43,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 02:07:43,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 02:07:43,605 INFO L87 Difference]: Start difference. First operand 129 states and 175 transitions. Second operand 6 states. [2020-07-21 02:07:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:43,727 INFO L93 Difference]: Finished difference Result 176 states and 238 transitions. [2020-07-21 02:07:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 02:07:43,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-21 02:07:43,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:43,734 INFO L225 Difference]: With dead ends: 176 [2020-07-21 02:07:43,735 INFO L226 Difference]: Without dead ends: 141 [2020-07-21 02:07:43,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-07-21 02:07:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-21 02:07:43,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-07-21 02:07:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-07-21 02:07:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 193 transitions. [2020-07-21 02:07:43,743 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 193 transitions. Word has length 61 [2020-07-21 02:07:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:43,744 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 193 transitions. [2020-07-21 02:07:43,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 02:07:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 193 transitions. [2020-07-21 02:07:43,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-21 02:07:43,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:43,746 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:43,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:43,961 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:43,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:43,961 INFO L82 PathProgramCache]: Analyzing trace with hash -374866097, now seen corresponding path program 2 times [2020-07-21 02:07:43,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:43,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461142625] [2020-07-21 02:07:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:44,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 02:07:44,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:44,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 02:07:44,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 02:07:44,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 02:07:44,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461142625] [2020-07-21 02:07:44,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 02:07:44,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 02:07:44,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376650450] [2020-07-21 02:07:44,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 02:07:44,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:44,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 02:07:44,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 02:07:44,940 INFO L87 Difference]: Start difference. First operand 141 states and 193 transitions. Second operand 4 states. [2020-07-21 02:07:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:45,005 INFO L93 Difference]: Finished difference Result 185 states and 247 transitions. [2020-07-21 02:07:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 02:07:45,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2020-07-21 02:07:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:45,008 INFO L225 Difference]: With dead ends: 185 [2020-07-21 02:07:45,008 INFO L226 Difference]: Without dead ends: 153 [2020-07-21 02:07:45,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 02:07:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-21 02:07:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-07-21 02:07:45,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-21 02:07:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 209 transitions. [2020-07-21 02:07:45,017 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 209 transitions. Word has length 73 [2020-07-21 02:07:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:45,018 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 209 transitions. [2020-07-21 02:07:45,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 02:07:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 209 transitions. [2020-07-21 02:07:45,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-07-21 02:07:45,020 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:45,020 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:45,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:45,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:45,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:45,236 INFO L82 PathProgramCache]: Analyzing trace with hash -418943133, now seen corresponding path program 1 times [2020-07-21 02:07:45,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:45,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902722142] [2020-07-21 02:07:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:46,355 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 02:07:46,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:46,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 02:07:46,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 02:07:46,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 02:07:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 02:07:46,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902722142] [2020-07-21 02:07:46,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 02:07:46,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-07-21 02:07:46,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421553018] [2020-07-21 02:07:46,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 02:07:46,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:46,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 02:07:46,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 02:07:46,598 INFO L87 Difference]: Start difference. First operand 153 states and 209 transitions. Second operand 11 states. [2020-07-21 02:07:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:47,267 INFO L93 Difference]: Finished difference Result 260 states and 354 transitions. [2020-07-21 02:07:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 02:07:47,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-07-21 02:07:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:47,270 INFO L225 Difference]: With dead ends: 260 [2020-07-21 02:07:47,271 INFO L226 Difference]: Without dead ends: 222 [2020-07-21 02:07:47,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-07-21 02:07:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-07-21 02:07:47,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 198. [2020-07-21 02:07:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-21 02:07:47,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 269 transitions. [2020-07-21 02:07:47,285 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 269 transitions. Word has length 77 [2020-07-21 02:07:47,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:47,286 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 269 transitions. [2020-07-21 02:07:47,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 02:07:47,286 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 269 transitions. [2020-07-21 02:07:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-21 02:07:47,287 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 02:07:47,288 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 02:07:47,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:47,504 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 02:07:47,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 02:07:47,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1212724599, now seen corresponding path program 2 times [2020-07-21 02:07:47,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 02:07:47,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481848103] [2020-07-21 02:07:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:50,161 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 02:07:50,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 02:07:50,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 02:07:50,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 02:07:50,208 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,220 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,225 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,231 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,233 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 02:07:50,236 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-21 02:07:50,244 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,252 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,261 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 02:07:50,265 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-21 02:07:50,270 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,286 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,287 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,288 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,289 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 02:07:50,291 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,296 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,297 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,298 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,300 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 02:07:50,310 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,314 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 02:07:50,322 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 02:07:50,324 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,334 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,335 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 02:07:50,336 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,337 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,338 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,339 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 02:07:50,340 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,344 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,345 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 02:07:50,347 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 02:07:50,351 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,352 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,355 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,358 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,396 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 02:07:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 02:07:50,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 02:07:50,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481848103] [2020-07-21 02:07:50,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 02:07:50,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 02:07:50,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118785358] [2020-07-21 02:07:50,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 02:07:50,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 02:07:50,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 02:07:50,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 02:07:50,448 INFO L87 Difference]: Start difference. First operand 198 states and 269 transitions. Second operand 5 states. [2020-07-21 02:07:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 02:07:50,529 INFO L93 Difference]: Finished difference Result 267 states and 360 transitions. [2020-07-21 02:07:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 02:07:50,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-07-21 02:07:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 02:07:50,532 INFO L225 Difference]: With dead ends: 267 [2020-07-21 02:07:50,532 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 02:07:50,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 02:07:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 02:07:50,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 02:07:50,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 02:07:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 02:07:50,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2020-07-21 02:07:50,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 02:07:50,535 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 02:07:50,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 02:07:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 02:07:50,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 02:07:50,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 02:07:50,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 02:07:51,308 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-07-21 02:07:51,513 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-07-21 02:07:51,718 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-07-21 02:07:51,963 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-07-21 02:07:51,989 INFO L268 CegarLoopResult]: For program point Id_MCDC_100FINAL(lines 418 424) no Hoare annotation was computed. [2020-07-21 02:07:51,990 INFO L268 CegarLoopResult]: For program point Id_MCDC_100EXIT(lines 418 424) no Hoare annotation was computed. [2020-07-21 02:07:51,990 INFO L271 CegarLoopResult]: At program point Id_MCDC_100ENTRY(lines 418 424) the Hoare annotation is: true [2020-07-21 02:07:51,990 INFO L271 CegarLoopResult]: At program point L422(line 422) the Hoare annotation is: true [2020-07-21 02:07:51,990 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 02:07:51,990 INFO L264 CegarLoopResult]: At program point L403(line 403) the Hoare annotation is: (= 0 Id_MCDC_99_~Id_MCDC_140~0) [2020-07-21 02:07:51,990 INFO L268 CegarLoopResult]: For program point L403-1(line 403) no Hoare annotation was computed. [2020-07-21 02:07:51,990 INFO L271 CegarLoopResult]: At program point Id_MCDC_99ENTRY(lines 398 417) the Hoare annotation is: true [2020-07-21 02:07:51,990 INFO L268 CegarLoopResult]: For program point Id_MCDC_99EXIT(lines 398 417) no Hoare annotation was computed. [2020-07-21 02:07:51,991 INFO L268 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-07-21 02:07:51,991 INFO L268 CegarLoopResult]: For program point L406-2(lines 406 413) no Hoare annotation was computed. [2020-07-21 02:07:51,991 INFO L268 CegarLoopResult]: For program point L404-2(lines 404 414) no Hoare annotation was computed. [2020-07-21 02:07:51,991 INFO L271 CegarLoopResult]: At program point L404-3(lines 404 414) the Hoare annotation is: true [2020-07-21 02:07:51,991 INFO L271 CegarLoopResult]: At program point L404-4(lines 404 414) the Hoare annotation is: true [2020-07-21 02:07:51,991 INFO L268 CegarLoopResult]: For program point Id_MCDC_99FINAL(lines 398 417) no Hoare annotation was computed. [2020-07-21 02:07:51,992 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-07-21 02:07:51,992 INFO L268 CegarLoopResult]: For program point L213(line 213) no Hoare annotation was computed. [2020-07-21 02:07:51,992 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-07-21 02:07:51,992 INFO L268 CegarLoopResult]: For program point L209-2(line 209) no Hoare annotation was computed. [2020-07-21 02:07:51,992 INFO L271 CegarLoopResult]: At program point Id_MCDC_89ENTRY(lines 191 246) the Hoare annotation is: true [2020-07-21 02:07:51,992 INFO L268 CegarLoopResult]: For program point Id_MCDC_89EXIT(lines 191 246) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point L234(lines 234 239) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point L234-1(lines 232 244) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point L202(lines 202 205) no Hoare annotation was computed. [2020-07-21 02:07:51,993 INFO L268 CegarLoopResult]: For program point Id_MCDC_89FINAL(lines 191 246) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L271 CegarLoopResult]: At program point L207(lines 207 223) the Hoare annotation is: true [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-07-21 02:07:51,994 INFO L268 CegarLoopResult]: For program point L232-3(line 232) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L232-5(lines 232 244) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 231) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L271 CegarLoopResult]: At program point L224-3(lines 224 231) the Hoare annotation is: true [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L224-4(lines 224 231) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-07-21 02:07:51,995 INFO L268 CegarLoopResult]: For program point L200(lines 200 206) no Hoare annotation was computed. [2020-07-21 02:07:51,996 INFO L268 CegarLoopResult]: For program point L200-2(lines 200 206) no Hoare annotation was computed. [2020-07-21 02:07:51,996 INFO L268 CegarLoopResult]: For program point L196(lines 196 199) no Hoare annotation was computed. [2020-07-21 02:07:51,996 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 425 456) the Hoare annotation is: true [2020-07-21 02:07:51,996 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 425 456) no Hoare annotation was computed. [2020-07-21 02:07:51,996 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 425 456) no Hoare annotation was computed. [2020-07-21 02:07:51,996 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-21 02:07:51,996 INFO L268 CegarLoopResult]: For program point L450(lines 450 453) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L268 CegarLoopResult]: For program point L374-2(lines 374 391) no Hoare annotation was computed. [2020-07-21 02:07:51,997 INFO L271 CegarLoopResult]: At program point L374-3(lines 374 391) the Hoare annotation is: true [2020-07-21 02:07:51,998 INFO L268 CegarLoopResult]: For program point L374-4(lines 374 391) no Hoare annotation was computed. [2020-07-21 02:07:51,998 INFO L271 CegarLoopResult]: At program point Id_MCDC_97ENTRY(lines 329 397) the Hoare annotation is: true [2020-07-21 02:07:51,998 INFO L268 CegarLoopResult]: For program point Id_MCDC_97EXIT(lines 329 397) no Hoare annotation was computed. [2020-07-21 02:07:51,998 INFO L268 CegarLoopResult]: For program point L387(lines 387 390) no Hoare annotation was computed. [2020-07-21 02:07:51,998 INFO L268 CegarLoopResult]: For program point L354(lines 354 395) no Hoare annotation was computed. [2020-07-21 02:07:51,998 INFO L268 CegarLoopResult]: For program point L350-2(lines 350 353) no Hoare annotation was computed. [2020-07-21 02:07:51,998 INFO L264 CegarLoopResult]: At program point L350-3(lines 350 353) the Hoare annotation is: (= 6144 Id_MCDC_97_~Id_MCDC_123~0) [2020-07-21 02:07:51,999 INFO L268 CegarLoopResult]: For program point L350-4(lines 330 397) no Hoare annotation was computed. [2020-07-21 02:07:51,999 INFO L271 CegarLoopResult]: At program point L363(line 363) the Hoare annotation is: true [2020-07-21 02:07:51,999 INFO L268 CegarLoopResult]: For program point L363-1(lines 363 366) no Hoare annotation was computed. [2020-07-21 02:07:51,999 INFO L268 CegarLoopResult]: For program point Id_MCDC_97FINAL(lines 329 397) no Hoare annotation was computed. [2020-07-21 02:07:51,999 INFO L271 CegarLoopResult]: At program point L359(line 359) the Hoare annotation is: true [2020-07-21 02:07:51,999 INFO L268 CegarLoopResult]: For program point L359-1(lines 359 362) no Hoare annotation was computed. [2020-07-21 02:07:51,999 INFO L271 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: true [2020-07-21 02:07:51,999 INFO L268 CegarLoopResult]: For program point L376-1(lines 376 379) no Hoare annotation was computed. [2020-07-21 02:07:52,000 INFO L268 CegarLoopResult]: For program point L356-2(lines 356 394) no Hoare annotation was computed. [2020-07-21 02:07:52,000 INFO L271 CegarLoopResult]: At program point L356-3(lines 356 394) the Hoare annotation is: true [2020-07-21 02:07:52,000 INFO L271 CegarLoopResult]: At program point L369(line 369) the Hoare annotation is: true [2020-07-21 02:07:52,000 INFO L268 CegarLoopResult]: For program point L369-1(lines 369 372) no Hoare annotation was computed. [2020-07-21 02:07:52,000 INFO L271 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: true [2020-07-21 02:07:52,000 INFO L271 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 278 297) the Hoare annotation is: true [2020-07-21 02:07:52,001 INFO L268 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 278 297) no Hoare annotation was computed. [2020-07-21 02:07:52,001 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-07-21 02:07:52,001 INFO L264 CegarLoopResult]: At program point L294(line 294) the Hoare annotation is: (and (or (and (not (< 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296))) (not (< (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296) 2))) (< 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296))) (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (< (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296) 2) (and (not (< 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296))) (not (< (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296) 2))) (< 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3)))) [2020-07-21 02:07:52,001 INFO L264 CegarLoopResult]: At program point L296-2(line 296) the Hoare annotation is: (and (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (and |Id_MCDC_95_#t~short23| (or (< (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296) 2) (< 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296)))) (and (not (< 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296))) (not (< (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296) 2)))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3))) (or (and (not (< (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296) 2)) (not (< 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296)))) (and |Id_MCDC_95_#t~short23| (< 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296))))) [2020-07-21 02:07:52,001 INFO L268 CegarLoopResult]: For program point L294-1(line 294) no Hoare annotation was computed. [2020-07-21 02:07:52,002 INFO L268 CegarLoopResult]: For program point L296-3(line 296) no Hoare annotation was computed. [2020-07-21 02:07:52,002 INFO L264 CegarLoopResult]: At program point L288(line 288) the Hoare annotation is: (let ((.cse0 (< 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296)))) (and (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3))) (or .cse0 (and (not (< (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296) 2)) (not (< 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296))))) (or (and (not (< (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296) 2)) (not (< 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296)))) (and (or .cse0 (< (mod Id_MCDC_95_~Id_MCDC_93 4294967296) 2)) (or (< (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296) 2) (< 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296))))))) [2020-07-21 02:07:52,002 INFO L268 CegarLoopResult]: For program point L288-1(line 288) no Hoare annotation was computed. [2020-07-21 02:07:52,002 INFO L268 CegarLoopResult]: For program point L286(lines 286 293) no Hoare annotation was computed. [2020-07-21 02:07:52,002 INFO L268 CegarLoopResult]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2020-07-21 02:07:52,002 INFO L268 CegarLoopResult]: For program point L282(lines 282 285) no Hoare annotation was computed. [2020-07-21 02:07:52,003 INFO L264 CegarLoopResult]: At program point L295(line 295) the Hoare annotation is: (and (or (and (not (< 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296))) (not (< (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296) 2))) (< 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296)) (< (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296) 2)) (or (and (not (< 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296))) (not (< (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296) 2))) (< 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296))) (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3)))) [2020-07-21 02:07:52,003 INFO L268 CegarLoopResult]: For program point L295-1(line 295) no Hoare annotation was computed. [2020-07-21 02:07:52,003 INFO L268 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 278 297) no Hoare annotation was computed. [2020-07-21 02:07:52,003 INFO L268 CegarLoopResult]: For program point L316(lines 316 321) no Hoare annotation was computed. [2020-07-21 02:07:52,003 INFO L268 CegarLoopResult]: For program point L316-1(lines 314 326) no Hoare annotation was computed. [2020-07-21 02:07:52,003 INFO L268 CegarLoopResult]: For program point L314(line 314) no Hoare annotation was computed. [2020-07-21 02:07:52,004 INFO L268 CegarLoopResult]: For program point L314-2(line 314) no Hoare annotation was computed. [2020-07-21 02:07:52,004 INFO L268 CegarLoopResult]: For program point L314-3(line 314) no Hoare annotation was computed. [2020-07-21 02:07:52,004 INFO L268 CegarLoopResult]: For program point L314-5(lines 314 326) no Hoare annotation was computed. [2020-07-21 02:07:52,004 INFO L268 CegarLoopResult]: For program point L306-1(lines 306 313) no Hoare annotation was computed. [2020-07-21 02:07:52,004 INFO L271 CegarLoopResult]: At program point L306-3(lines 306 313) the Hoare annotation is: true [2020-07-21 02:07:52,004 INFO L268 CegarLoopResult]: For program point L302(lines 302 305) no Hoare annotation was computed. [2020-07-21 02:07:52,004 INFO L268 CegarLoopResult]: For program point L306-4(lines 306 313) no Hoare annotation was computed. [2020-07-21 02:07:52,005 INFO L268 CegarLoopResult]: For program point Id_MCDC_96FINAL(lines 298 328) no Hoare annotation was computed. [2020-07-21 02:07:52,005 INFO L268 CegarLoopResult]: For program point L309(lines 309 312) no Hoare annotation was computed. [2020-07-21 02:07:52,005 INFO L271 CegarLoopResult]: At program point Id_MCDC_96ENTRY(lines 298 328) the Hoare annotation is: true [2020-07-21 02:07:52,005 INFO L268 CegarLoopResult]: For program point Id_MCDC_96EXIT(lines 298 328) no Hoare annotation was computed. [2020-07-21 02:07:52,005 INFO L268 CegarLoopResult]: For program point L253(lines 253 267) no Hoare annotation was computed. [2020-07-21 02:07:52,005 INFO L271 CegarLoopResult]: At program point Id_MCDC_92ENTRY(lines 247 277) the Hoare annotation is: true [2020-07-21 02:07:52,005 INFO L268 CegarLoopResult]: For program point Id_MCDC_92EXIT(lines 247 277) no Hoare annotation was computed. [2020-07-21 02:07:52,006 INFO L268 CegarLoopResult]: For program point Id_MCDC_92FINAL(lines 247 277) no Hoare annotation was computed. [2020-07-21 02:07:52,006 INFO L271 CegarLoopResult]: At program point L270(line 270) the Hoare annotation is: true [2020-07-21 02:07:52,006 INFO L268 CegarLoopResult]: For program point L270-1(line 270) no Hoare annotation was computed. [2020-07-21 02:07:52,006 INFO L268 CegarLoopResult]: For program point L268-1(lines 248 277) no Hoare annotation was computed. [2020-07-21 02:07:52,006 INFO L268 CegarLoopResult]: For program point L268-2(lines 268 275) no Hoare annotation was computed. [2020-07-21 02:07:52,006 INFO L268 CegarLoopResult]: For program point L259(lines 259 267) no Hoare annotation was computed. [2020-07-21 02:07:52,006 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 02:07:52,007 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 02:07:52,007 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 02:07:52,007 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 02:07:52,007 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 02:07:52,007 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 02:07:52,007 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 02:07:52,007 INFO L268 CegarLoopResult]: For program point avoid_zeroEXIT(lines 7 13) no Hoare annotation was computed. [2020-07-21 02:07:52,007 INFO L268 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-07-21 02:07:52,008 INFO L268 CegarLoopResult]: For program point L9-2(lines 7 13) no Hoare annotation was computed. [2020-07-21 02:07:52,008 INFO L271 CegarLoopResult]: At program point avoid_zeroENTRY(lines 7 13) the Hoare annotation is: true [2020-07-21 02:07:52,008 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 457 464) the Hoare annotation is: true [2020-07-21 02:07:52,008 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 02:07:52,008 INFO L268 CegarLoopResult]: For program point L459(lines 459 462) no Hoare annotation was computed. [2020-07-21 02:07:52,008 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 457 464) no Hoare annotation was computed. [2020-07-21 02:07:52,008 INFO L268 CegarLoopResult]: For program point L459-2(lines 457 464) no Hoare annotation was computed. [2020-07-21 02:07:52,009 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2020-07-21 02:07:52,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:07:52 BoogieIcfgContainer [2020-07-21 02:07:52,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 02:07:52,032 INFO L168 Benchmark]: Toolchain (without parser) took 14581.75 ms. Allocated memory was 139.5 MB in the beginning and 306.7 MB in the end (delta: 167.2 MB). Free memory was 102.7 MB in the beginning and 162.2 MB in the end (delta: -59.5 MB). Peak memory consumption was 107.7 MB. Max. memory is 7.1 GB. [2020-07-21 02:07:52,033 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 02:07:52,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.01 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 174.2 MB in the end (delta: -71.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-21 02:07:52,035 INFO L168 Benchmark]: Boogie Preprocessor took 99.33 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 170.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-07-21 02:07:52,036 INFO L168 Benchmark]: RCFGBuilder took 1299.03 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 106.7 MB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. [2020-07-21 02:07:52,037 INFO L168 Benchmark]: TraceAbstraction took 12573.48 ms. Allocated memory was 203.9 MB in the beginning and 306.7 MB in the end (delta: 102.8 MB). Free memory was 106.7 MB in the beginning and 162.2 MB in the end (delta: -55.6 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2020-07-21 02:07:52,040 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 602.01 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 174.2 MB in the end (delta: -71.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.33 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 170.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1299.03 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 106.7 MB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12573.48 ms. Allocated memory was 203.9 MB in the beginning and 306.7 MB in the end (delta: 102.8 MB). Free memory was 106.7 MB in the beginning and 162.2 MB in the end (delta: -55.6 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 461]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 6144 == Id_MCDC_123 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1614 SDtfs, 350 SDslu, 3418 SDs, 0 SdLazy, 333 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 732 GetRequests, 692 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 148 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 238 PreInvPairs, 279 NumberOfFragments, 324 HoareAnnotationTreeSize, 238 FomulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 416 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 546 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 717 ConstructedInterpolants, 0 QuantifiedInterpolants, 57355 SizeOfPredicates, 16 NumberOfNonLiveVariables, 5208 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 271/281 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...